Market voices on:

Mr Trump arrived in Manhattan later than scheduled, after taking time in Washington to celebrate a long-sought Republican victory in Congress, which voted to repeal and replace Barack Obama's 2010 signature health law known as "Obamacare".

"It just gets worse and worse and he's just not president material by any stretch of the imagination."

"He's an anti-intellectual who's not qualified for the job and I believe he contradicts what America is supposed to be about," said one of the march organizers, Flav Maximus, 39.

Mr Trump's moves to restrict immigration, roll back federal protections for transgender students and assault Obamacare are all widely unwelcome in America's most populous city, and one of its most liberal.

The massive police presence and huge cost necessary for securing his Trump Tower home are also deeply unpopular.